Means for preventing creepage of railroad rails



B. B. GREER.

MEANS FOR PREVENTING CREEPAGE 0F RAILROAD RAILS.

APPLICATION FILED JULY 19, 1920.

1,43%11/9 I Patented Oct. 17, 1192&

Patented @ct. 17, 1922.

UNHTED STATES nearer/rmie. semen, or cnrcaeo, learner's.

MEANS FOR PREVENTING CREEPAGE 0F RAILROAD RAILS.

Application filed July 19,

ing Creepage of Railroad Rails, of which the following is a specification.

My invention relates to means for preventing creepage of railroad rails.

In the construct-ion and maintenance of railroads it is common practice to provide anti-creeping devices to prevent longitudinal creeping of the rails on the ties, particularl on double track road where the traffic is mostly in one direction. These anti-creepin devices are oftentimes complicated an ineiiicient and since they are embodied in structures separate and distinct from the rails or the usual tie plates the cost of track construction and maintenance is considerably increased. Oneof the objects of my invention is to provide holding means integral with the base of the rail which is adapted to engage the ties on which the rail rests in such a manner as to prevent effectively any substantial longltudinal movement ofthe rail with respect to the ties, when the. spikes holding the rail are driven home. The holding means may take any one of several forms but preferably consists in ribs formed on the bottom till of the rail base which may extend transversely of the rail and are adapted to work their way into the ties.

In most constructions, especially when ties of soft wood are used, it is common ractice torovide metal lates between I p p p 'the parts shown in Fig. 2 looking from the the. rail, base and the tie to provide a seat for the rail which will act in general to protect the ties and to prevent lateral turning of the rails about their longitudinal axes with the consequent cutting of the ties by the rail base. It is a further object of my invention tq'provide a'tie plate having means interlocking with the holding means on the rail base whereby any substantial longitudinal creeping of the rail with respect to the plate is prevented when the rail and the plate are spiked to the tie. The tie plate may be formed with spike openings on both sides of and close to the edges of the rail base flanges whereby spikes driven there-through hold the rail and plate securely to the tie or the'plate'may be formed with an integral jaw adapted to 1920. Serial No. 397,255.

engage one side of the rail base, the opposite side of the rail base being held .to the plate and tie by a spike. The interlocking holding means may take any one of several forms, for example, ribs may be provided on the bottom of the rail base adapted to interlock with suitable grooves formed in the upper side 10f the tie plate, or when a tie plate ofthe typelast mentioned is used the ribs may be formed on the top of the rail base. flange and the grooves in the underside of the jaw provided on the tie plate. Preferably the ribs and grooves are ii-shaped and extend transversely of. the rail base, the grooves being formed a little wider than the ribs to permit limited longitudinal movement of the rail to take care of contraction and expansion which occur under changes of temperature.

The invention consists in certain novel arrangements and constructions, to be hereinafter described and claimed, whereby theabove stated objects and such other objects as Wlll hereinafter appear, are obtained.

The invention is illustrated in certain referred embodiments in the accompanymg drawings-wherein:

-F1g.. 1 1s a side elevation of a'section of rail, embodying the principles of myinvention, 'as applied directly to the ties.

Fig. 2 1s a perspective view of a section of the rail with a tie plate, constructed ac-' "cording to my invention disposed between the rail base and the tie, the tie plate having a jaw adapted to'engage one of the rail base flanges. I

Fig. 3 is an enlarged elevational View of left hand side of thefigure.

Fig. 4 .is a perspective view of a section "of the rail illustrated in the. preceding prevent creeping of the rail, but without' I the overhanging jaw, and

Fig. 6 is a pers ective view of'a rail base and a tie plate il ustrating a mification. v

Like characters of reference designate j like parts in the several views.

Referring first to Figs. fl to 4, inclusive,

the rail 7 is formed so as to provide ins,

tegral holdingmeans on thehase thereof adapted to engage the ties on which the rail rests. The holding means preferably is in the form of ribs 8 which may extend transversely of the railbase. These ribs are preferably \l-shaped and are adapted to work their way into the upper side of the cross-ties 9 when the rail is placed directly on the ties, as shown in Fig. 1, the rail being secured to the ties by any preferred means, for example, the spikes 10. The ribs are integrally formed with the rail base at the time the rail is rolled at practically no extra cost. With a rail constructed as above described every tie does its share in. holding the rail against longitudinal creeping and in effect becomes a rail anchor. The welght of the rolling stock in passing over the rail forces the ribs'to their maximum vdepth into the tie thereby increasing the efiectivene'ss of the engagement between the ribs and the ties. The fibres of the ties adjacent the grooves tormed in the upper sides thereof by the ribs on the rail base yield sutliciently to permit limited longitudinal movement of the rail resulting from contraction .or expansion due to changes in temperature.

t In Figures, 2 and 3 I have shown a rail,

I embodying the principles of my'invention, with a special form of tie plate 11 interposed between the base of the rail and the tie.'

The tie plate is preferably provided along one of its longitudinal edges with an integral jaw 12.. Thisjaw-is preferably formed so that it will overhang onset the base flanges'of the rail and so that the angularity of the surface 13 of the underside of the jaw is less than the angularity of the top surface of the base flange 7 of the rail and consequently the jaw will have to be. forced upwardly slightly and will take a firm pinching grip on the base flange when the same is forced into the jaw, as shown inFig. 2. The upper side of the tie plate is provided with a series of grooves 14 .which are uniforml spaced according to the spacing of theri s on the bottom of the rail base and are adapted to receivesaid ribs. As more clearly shown in Fig. 3 the grooves 14 are slightly larger than the ribs 8 thus making provision for such limited longitudinal movement of the rail with respect tothe tie plate [as may take place due to contraction and expansiorn The tie plate adjacent the. aw-12 is providedwith one or more spike openings 15, the o posite edge of the plate hem also provided with one or more spike openings 16. One edge of the-base flangeof'the rail is forced in under the jaw 12, the

ribs 8 projecting into the grooves 14, the op-- posite edge of the rail' base and side of the tie plate being secured to the tie by the spikes 10 which project through the openings 16. By this arrangement the rail is positivel held against any substantial lon itudinal .movement by the interlocking sur aces of the rail base and the tie plate.

spike opening, s

I Tn Fig. is shown a tie plate similar to the plate shown in Figs. 2 and 3, the jawl2,

down by spikes in the same manner as the flange on the otherside is held down in the Figs. 2 and 3.

In the modification shown in Fig-.6, the ribs 8 are formed on the upper side of the flanges of the rail base and the grooves in the tie plate are formed in the under side of the jaw 12, the tie plate in other respects being similar to the one shown in Figs. 2 and 3. It will be obvious that variousother modifications might be made, without departing from'the principles of my invention. lldo not intend to limit the invention, therefore, to the constructions and arrangements shown and described herein except only in l. The combination of a railroad rail and a tie plate, said plate being provided on one side with a jaw adapted to fit one edge of the rail base and bear against the upper surface thereof and on the other side with a the base of the rail having transverse ri formed on the bottom and extending to. an edge thereof and the plate having grooves in its upper surface adapted to receive said ribs and permit the plate being applied by driving the same transversely of the rail, the grooves being of greater width than the ribs thereby permitting limited longitudinal movement of the rail relativeto the plate.

2. The combination of a railroad rail and a tie plate, said plate being provided on one side with a jaw ada ted to overhang one of the base flanges of t e rail and on the other side with a spike opening, the angularity of the under surface of the jawbeing-less than that of the to surface of the base flange of the rail, the base of the rail and the plates having interlocking surfaces adapted to prevent any substantial relative movement.

' 3. The combination of-a railroad rail and a tie plate, said plate beingprovided on one side with a i iaw adapted to overhang one of the base anges of the rail and on the other side with a spike opening, the angularityof the under surface of the jaw being less than that ofthe top surface of the base flange of the rail, the base of the rail having into al ribs formed thereon and the plate having grooves adaptedto receive the ribs.

e combination of a railroad rail and a tie late, saidplate being provided on ,one'si ewlth a jaw adapted to overhangone of the base flanges of the rail and on the other sidewith a spike opening, the an larity of the under surface of the jaw belng less than that of the top surface of the base flange ofthe rail, the base of the rail having base flange of the rail, the baseof the rail having transverse ribs formed on the bottom thereof and the plate having greoves in its upper surface adapted to receive said ribs, the grooves being of greater width than 15 the, ribs thereby permitting limited longitudinal movement of the rail reiative' to'the plate.

BENJAMIN B. earns. 

